Methyllithium solution

Merck Life Science S.A.S

Revision date : 2026-07-14

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GHS02 GHS05 GHS07
Health risk rating 3
Safety risk rating 5
Environmental risk rating 1

General Information

Version

6.10

Revision date

2026-07-14

Product name

Methyllithium solution

Emergency telephone

+33 (0)9 75 18 14 07, +33 (0)1 45 42 59 59

Icons in SDS

GHS02 GHS05 GHS07 M004 M009 M010 M011 M017

Company Information

company name

Merck Life Science S.A.S

e-mail address of the competent person responsible for the Safety Data Sheet

servicetechnique@merckgroup.com

GHS Information

Signal word

Danger

Hazard Codes

Hazard statements (CLP)

H225, H250, H260, H302, H314, H336

Hazard statements

Code

Statements

H225

Highly Flammable liquid and vapour

Section 2

SECTION 2: Hazards identification

Regulation (EC) No. 1272/2008 Classification of the substance or mixture

Signal word

Danger

Hazard statements

H225 Highly flammable liquid and vapour. H250 Catches fire spontaneously if exposed to air. H260 In contact with water releases flammable gases which may ignite spontaneously. H302 Harmful if swallowed. H314 Causes severe skin burns and eye damage. H336 May cause drowsiness or dizziness. EUH066 Repeated exposure may cause skin dryness or cracking.

Supplemental label elements

EUH019 May form explosive peroxides.

Precautionary statements

Prevention: P210 Keep away from heat/ sparks/ open flames/ hot surfaces. No smoking. P222 Do not allow contact with air. P223 Keep away from any possible contact with water, because of violent reaction and possible flash fire. P231 + P232 Handle under inert gas. Protect from moisture.

Response

P370 + P378 In case of fire: Use dry sand, dry chemical or alcohol-resistant foam for extinction.

Storage

P422 Store contents under inert gas.

Hazardous Ingredients

Diethyl ether methyllithium

2.3 Other hazards

This substance/mixture contains no components considered to be either persistent, bioaccumulative and toxic (PBT), or very persistent and very bioaccumulative (vPvB) at levels of 0.1% or higher.

ECOLOGICAL INFORMATION

The substance/mixture does not contain components considered to have endocrine disrupting properties according to REACH Article 57(f) or Commission Delegated regulation (EU) 2017/2100 or Commission Regulation (EU) 2018/605 at levels of 0.1% or higher.

TOXICOLOGICAL INFORMATION

The substance/mixture does not contain components considered to have endocrine disrupting properties according to REACH Article 57(f) or Commission Delegated regulation (EU) 2017/2100 or Commission Regulation (EU) 2018/605 at levels of 0.1% or higher.

2.1 Classification of the substance or mixture

Classification (REGULATION (EC) No 1272/2008) Flammable liquids, Category 2 H225: Highly flammable liquid and vapour. Pyrophoric liquids, Category 1 H250: Catches fire spontaneously if exposed to air. Substances, which in contact with H260: In contact with water releases water, emit flammable gases, flammable gases which may ignite Category 1 spontaneously. Acute toxicity, Category 4 H302: Harmful if swallowed. Skin corrosion, Category 1B H314: Causes severe skin burns and eye damage. Specific target organ toxicity - H336: May cause drowsiness or dizziness. single exposure, Category 3

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